using System.ComponentModel.DataAnnotations;

namespace GerbilManagerWebAPI.Models
{
    /// <summary>
    /// FEEDBACK: a user-submitted "Fehler melden" report. Decoupled from the rest of the
    /// model on purpose — GerbilId/LitterId are plain nullable Guid columns (NOT enforced
    /// foreign keys), so the import re-ingest wipe (IngestResolvedService) can delete
    /// gerbils/litters without deleting or breaking feedback rows. The captured EntityName
    /// keeps the report human-readable even after the referenced animal is gone.
    /// </summary>
    public class Feedback
    {
        [Key]
        public Guid Id { get; set; }

        /// <summary>The user's free-text description of the problem.</summary>
        public required string Message { get; set; }

        /// <summary>Which view the report came from: stammbaum | gerbil-detail | litter-detail.</summary>
        public required string Context { get; set; }

        /// <summary>Loose reference (no FK) to the gerbil the report is about, if any.</summary>
        public Guid? GerbilId { get; set; }

        /// <summary>Loose reference (no FK) to the litter the report is about, if any.</summary>
        public Guid? LitterId { get; set; }

        /// <summary>Loose reference (no FK) to the contact the report is about, if any.</summary>
        public Guid? ContactId { get; set; }

        /// <summary>Captured name of the referenced animal/litter (survives an ingest wipe).</summary>
        public string? EntityName { get; set; }

        /// <summary>The client URL/route the report was filed from.</summary>
        public string? Url { get; set; }

        /// <summary>Client-supplied timestamp (when the user submitted, in their browser).</summary>
        public DateTimeOffset? ClientTimestamp { get; set; }

        /// <summary>Optional browser user-agent for diagnostics.</summary>
        public string? UserAgent { get; set; }

        /// <summary>Server-side creation time.</summary>
        public DateTimeOffset CreatedAt { get; set; }

        /// <summary>
        /// Ticket lifecycle status: "Open" | "Resolved" (default "Open"). Plain string,
        /// no FK — keeps feedback decoupled and ingest-surviving like the rest of the row.
        /// </summary>
        public string Status { get; set; } = "Open";

        /// <summary>When the ticket was marked resolved; null while open.</summary>
        public DateTimeOffset? ResolvedAt { get; set; }
    }
}